Storage battery.



T. A. EDISON. STORAGE BATTERY.

APPLIOATION FILED DB0. '1, 1905.

.Patented Mar. 2, i909'.

ttest. Y

I Ms Mm THOMAS EDISON, OF LLEWELLYN Y STORAGE BATTERY COMPANY, or wEs'r ORANGE, NEW JERSEY,

NEW JERSEY.

. Specieation ot mettez-s Patent.

A CORPORATION or.

, STORAGE BATTERY.

kunnen@ s, 190e.

original ppiimion ma november as, 1902, serai Nq. 133,112. Divided ma un; .ppiiaan ined Decanter '1, 1905.

` semi No. 290,711. j

To all whom it lmay concern.'

Be 1t known that I, THOMAS ALvA EDISON, a citizen of the United-States, and a resident of Llewellyn Park, Orange, in the county of.

` 'ected in practice, as when used in automoiles and railway cars, will notJ loosen the holding means so as to allow the plates to vibrate; and while the present improvements have been designed especially for use in connection with storage batteries of the type invented by me wherein insoluble active materials are emplo 1ed in an alkaline electrolyte, it will be un erstood that the invention is applicable for use with storage batteries of other ty es.

Reference is hereliy made to the accompanying drawing which shows a storage l battery cell in plan, the containing receptacle being in section.

The cam 1 is generally rectangular as shown, being formed preferably of thin sheet metal which has been carefully nickel-plated so as to prevent oxidation, particularly in an alkaline solution, although it is obvious that other metals can be employed if desired.

The grids 2 are substantially like those which I have' described in prior patents and carry a plurality of ockets 3 containing the active material, sai pockets being crimped in ppsition under pressure. The grids and poc ets constituting the entire plate vare preferably made of carefully nickel-plated steel, the nickel-plated coating being welded to the steel in an atmosphere of hydrogen.

Plates of like polarity are connected toether and are mounted on bolts 9 having heads 91 which pass also through the eye 10 of a proper conductor 10u for the external circuit. The plates of each set are separated by washers 11 and the plates and washers of each'set are held rigidly togethe` on the bolts 9 by nuts 12, a hardened split s ring washer 13 of ordinary construction eing em loyed on each bolt for locking the nut an preventing accidental loosening thereof.

In order to prevent plates of opposite polarity from engaging one another, separating rodsor bars 36 essentially star shaped in cross-section, may be utilized, said rods being mounted in the vertical channels formed between adjacent pockets, so 'that each rod engages the corners of fouradjacent pockets as shown, and opposite ed es may engage the surfacesof the grids as s own.`

Having now described my invention, what I claim as new and desire to secure by Letters Patent is as follows: l

1. In a storage battery, the combination .of a series of plates of' one polarity, a bolt on which said plates are strun a series of plates of the opposite polarity, a olt on which said second named lates arestrung, parallel to said irst namey bolt, conducting separators strung on said bolts between plates of like polarity, means for elastically clamping said plates and separators together and nonconducting separators between all the lates for insulating plates of opposite po arity from each other, substantially as set forth.

2. In a stora e battery, the combination of a series of p ates carrying pockets containing active material and insulating means situated between the plates and the pockets, each said means arranged to revent contact between adjacent plates an the pockets, substantially as set forth.

3. In a stora e battery, the combination of a series of p ates carrying pockets containing active material and insulating means situated in the channels between adjacent pockets and adjacent plates for preventing contact between elements of opposite polarity, substantially as set forth.

'4. In a storage battery, the combination of a series of plates of one polarity, a series of plates of the opposite polarit parallel thereto, the plates of one series a ternating with those of the other, all of the lates carrying protuberances or pockets iille with active material, means for elastically and conductively clamping together all the plates of the same polarity, and means for insu- PARK, ORANGE, NEW JERSEY, ASSIGNOR TO EDISON i and Whose cross-section 1s a ligure having lating the plates and protuberances of unlike polarity from each other', substantially as set" forth.

5. In a storage battery, the combination with two grids carrying pockets containing active materials, of vertical rods of insulating material situated between the Grids, each rod engaging four adjacent pocrets, substantial y as set forth. l

6. In a storage battery, the combination with two grids containing pockets of active material, of separators between the grids, i each of which engages four adjacent pockets two axes of symmetry at right angles to each other, substantially as set forth.

7. Ina storage battery, the combination with two grids containing pockets of active material, of separators between the grids,

each of which engages four adjacent pockets and whose cross-section is a star, substantially as set forth.

This s eciiication signed and witnessed this 6th i. ay of December, 1905A.

THOS` A. EDISON. Witnesses:

FRANK L. DYER, ANNA R. KLEHM. 

